code: def test_batch_chroma_spectrogram(self):
      waveform = torch.randn(3, 2, 4000)
  
      atol = 1e-6 if os.name == "nt" else 1e-8
      transform = T.ChromaSpectrogram(16000, 512, n_chroma=12)
  
      self.assert_batch_consistency(transform, waveform, atol=atol)
  
file_path: audio/test/torchaudio_unittest/prototype/transforms/batch_consistency_test.py
imports: import os
  import torch
  import torchaudio.prototype.transforms
  from torchaudio_unittest.common_utils import TorchaudioTestCase
label_desc: Use image node_id 5 for calling the BatchConsistencyTest obj's underlying member method code with example usage: obj.test_batch_chroma_spectrogram() without return types